Method for pumping a column



Sept. 30, 1969 a. ARCHER ETAL METHOD FOR PUMPING A COLUMN Filed Feb. 1, 1 968 2 Sheets-Sheet 1 v INVENTOR .70///V/ [04 y 5/1! fl/Ff t? BY SemmesmSmmes ATTORNEYS Sept. 30, 1969 ARCHER ETAL METHOD FOR PUMPING A COLUMN 2 Sheet:;-Sheut 2:

Filed Feb. 1, 1968 57/! flea/5? V emmesandsemmes ATTORNEYS United States Patent US. Cl. 52-115 10 Claims ABSTRACT OF THE DISCLOSURE Method for pumping a telescoping column or utility pole by pumping concrete into one of several aligned, telescoping port-ions, so as to longitudinally extend said sections from a rigid base within which the sections are anchored. The telescoping sections may be removed or left in place, as the concrete sets.

CROSS-REFERENCES TO RELATED APPLICATIONS A continuation-in-part of Method for Developing a Column (Ser. No. 676,286, filed Oct. 13, 1967), the parent application disclosing a method for developing a telescoping column wherein the telescoping forms are locked to a rigid precast base.

The present application diifers from the parent in that the rigid base is not necessarily precast nor are looking bolts required. According to the present invention, the lowermost telescoping section includes an anchoring form which extends within the rigid base and which may be pumped simultaneously with concrete. The filled anchoring form may be compacted or set within the rigid base, thus eliminating the necessity for bolting or locking the telescoping section to a rigid base.

BACKGROUND OF THE INVENTION Field of the invention Concrete pole developed by pumping concrete into a collapsed telescoping form comprised of a plurality of longitudinally aligned, interlocking sections so as to extend the aligned sections vertically above the base to which they are integrated.

Description of the prior art Prior inventors have used metallic vertically aligned forms for the pouring and setting of concrete in columns. However, the forms were bolted end to end and were not telescoping. The prior art does not suggest developing the column by pumping with concrete so as to extend the aligned telescoping sections.

Kelsey (975,135) shows the use of cylindrical metallic form sections bolted one to another prior to pouring of concrete through the top.

Rodgers (883,569) fills a metallic unitary form from the upper end to form a fence post.

Cotten (1,342,424) uses telescoping sections in a pile driving apparatus; however, the longitudinally extended pile driving sections are removed, either prior to or simultaneously with pouring of the concrete. There is no suggestion of extending the telescoping sections by developing a hydraulic pressure from the concrete being poured.

SUMMARY OF THE INVENTION According to the present invention a plurality of longitudinally aligned, interlocking forms are pumped with concrete so as to extend vertically as a column from an anchoring form. The anchoring form is pumped simultaneously with concrete, so as to integrate with the pole 3,469,358 Patented Sept. 30, 1969 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an elevational view showing a pumped column comprised of longitudinally aligned telescoping sections extending from a closed end anchoring form;

FIG. 2 is a greatly enlarged fragmentary vertical section showing both the sealing of sections one to the other and temporary securing of sections one to the other by means of an outside guide ring (shown in phantom);

FIG. 3 is an enlarged fragmentary section showing the use of a pressurizing strip between overlapping portions of the interlocking forms;

FIG. 4 is a horizontal section taken along section line 4--4, showing three such radially extending pressurizing strips, as in FIG. 3;

FIG. 5 is a fragmentary vertical section, showing a circumferentially extending pressurizing ring which may be positioned intermediate the overlapping portions of the telescoping sections;

FIG. 6 is a vertical section, showing a further modification of invention wherein telescoping section locking protuberances complementally engage one another;

FIG. 7 is an enlarged fragmentary showing of a sealing strip which extends both vertically between overlapping portions of the form section and laterally over said overlapping sections.

FIG. 8 is a fragmentary vertical section showing the overlapping forms having complementary locking protuberances and seal including an upper laterally extending portion 76 and an inner, vertically extending compressible portion 66-68.

FIG. 9 is a vertical fragmentary section showing a further modification of invention having complementary locking protuberances, as well as an axially spaced section aligning protuberance somewhat in the order of FIG. 5.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 pumped column 10 is illustrated as comprised of a plurality of longitudinally aligned concrete filled forms 12, 14, 15, 16 and 18, the lowermost form 12 being integrated with closed end anchoring form 22. Form 22 is not necessarily closed end, provided that form 22 is first set or compacted in earth or dry concrete aggregate. In the latter case, the concrete will set around anchoring form 22 as rain falls.

Column 10 may be pumped conventionally with concrete via gate 20 positioned about closed end form 22. According to the first-in, first-out principle the first pumped concrete extends both through the closed end base 22 and into top form 18 which rises vertically. Additional concrete enters the lower forms until all forms are vertically aligned with respect to each other. As illustrated in FIG. 2, a plurality of complementary locking protuberances 24 and 26 may be employed to lock the sections longitudinally with respect to each other. Also an outside guide ring 28 (illustrated in phantom) may be used to secure the forms with respect to each other, then removed after the concerto has set. A single locking protuberance 25 may be employed together with a pressurizing strip 27, as illustrated on the left hand side of FIG. 2.

In FIG. 3, the form 16 locking protuberance 34 is axially spaced for the locking protuberance 36 and beneath vertical sealing strip 38, so as to align form 16 together with protuberance 36. In FIG. 4 a plurality of such axially extending sealing strips 38 are illustrated as positioned 120 from each other.

According to the FIG. modification, complementary locking protuberances 42 and 44 engage each other beneath annular seal 46 having compressible ends 48 and 50. The overlapping outer portion 41 terminates in an upper guiding flange 40.

According to the FIG. 6 modification the locking protuberances 52 and 54 engage one another above annular seal 56 which is similar to seal 46, illustrated in FIG. 5.

In the FIG. 7 modification the innermost form has a locking protuberance 60 axially spaced from locking protuberance 58 and abuts the outer wall, so as to assist in aligning the telescoping sections together. Seal 62 includes a laterally extending portion 70 which overlaps protuberance 58 as at '64 and extends vertically between the overlapping form sections terminating in compressible ends 66 and 68.

According to the FIG. 8 modification protuberances 72 and 74 abut each other adjacent seal 78 which includes laterally extending portion 76 and vertically extending inner compressible portion 80. This type of seal is also illustrated in FIG. 9 where a lower guiding protuberance 82 is employed to align the sections one to the other.

We claim:

1. Method for pumping a column comprising:

(A) anchoring a telescoping form of the type including a plurality of longitudinally aligned, interlocking sections within a rigid base; and

(B) pumping concrete into a section of said form adjacent said base, so as to longitudinally extend said sections above said base, while filling a portion of said form extending into said base.

2. Method as in claim 1, including tensioning said sections by drawing a tension from the furthermost extended section to said base prior to setting of said concrete.

3. Method for pumping a column as in claim 1, including resiliently sealing said interlocking sections intermediate abutting telescoping portions.

4. A longitudinally extending column comprising:

(A) a rigid base;

(B) a plurality of longitudinally aligned interlocking, telescoping sections, fluid-sealed with respect to each other, the largest diameter section being locked to said base and including:

(i) a pumping gate for the introduction of fluid into said sections, and

a (ii) an anchoring form extending downwardly from said largest diameter section into said rigid base.

(C) concrete set within said longitudinally aligned interlocking telescoping portions.

5. A longitudinally extending column as in claim 4, said anchoring form being of the closed end type and being compactedly positioned within said base, so as to vertically support said column;

6. A longitudinally extending column as in claim 4, including a plurality of circumferentially positioned seals interposed intermediate abutting telescoping portions.

7. A longitudinally extending column as in claim 6, said circumferentially positioned seals consisting of a plurality of axially extending sealing strips.

8. A longitudinally extending column as in claim 6, including outside guide rings positioned over abutting portions of said telescoping portions until said concrete sets.

9. A longitudinally extending column as in claim 4, said telescoping sections including complementary locking protuberances extending about their overlapping end portions. I

10. A longitudinally extending column as in claim 6, said circumferentially positioned seals extending both vertically between overlapping portions of said telescoping sections and laterally over said overlapping portions.

References Cited UNITED STATES PATENTS 2,809,415 10/1957 Covelle 25-155 2,812,769 11/1957 Schaefer et al. 52-2 2,888,111 5/1959 Evans 52-115 XR 2,949,705 8/1960 Carper 52-723 3,110,502 11/1963 Pagano 277-205 XR 3,138,942 6/ 1964 Kayser 277-205 XR FOREIGN PATENTS 212,189 11/1966 Sweden.

BOBBY R. GAY, Primary Examiner ANDREW M. CALVERT, Assistant Examiner U.S. Cl. X.R. 

